Rotatable and tiltable casement window



Jan. 31, 1961 E. MAYER 2,969,566

ROTATABLE AND TILIABLE CASEMENT wmoow Filed June 4, 1958 3 Sheets-Sheet 1 ha en/or: lrnsl Mqyel' 4? tan M. "luau Jan. 31, 1961 E. MAYER ROTATABLE AND TILTABLE CASEMENT WINDOW 3 Sheets-Sheet 2 Filed June 4, 1958 1 llllllllllllllll I Jan. 31, 1961 Filed June 4, 1958 s. MAYER 2,969,566

ROTATABLE AND TILTABLE CASEMENT WINDOW 3 Sheets-Sheet 3 United States Patent ROTATABLE AND TILTABLE CASEMENT WINDOW Ernst Mayer, Mundingen, Wurttemberg, Germany Filed June 4, 1958, Ser. No. 739,797 Claims priority, application Germany June 6, 1957 Claims. (Cl. 53)

This invention relates to the art of window construction and more particularly to a novel, rotatable and tiltable casement window.

An object of the present invention resides in the provision of means facilitating the opening and closing of a rotatable and tiltable casement window by hand manipulation.

Rotatable and tiltable casement windows are mounted by conventional straps which generally consist of two parts. One of the parts of the strap is fixed on the frame and the other part to the wing of the window. These straps function in such a manner that for revolving or rotating motion about the vertical axis, the two parts of the straps provided for tilting motion about the horizontal axis are disengaged. This disengagement is accomplished either by withdrawing of the revolving pivot of the straps from one part or by shifting a part of each strap with the revolving pivot in such a manner that the revolving pivot becomes completely disengaged from the other part of the strap. For tilting motion about a horizontal axis, the straps necessary for rotating or revolving motion about a vertical axis must be disengaged.

Thus, with rotatable and tiltable casement windows as known up to now special manipulations are necessary to achieve the two above mentioned motions, which work in most cases separately from the handle which is used for the opening and closing of a window. Further, in most cases in which the switching of the various straps can be manipulated from one driving shaft or the like, a special lever system with angular reversion is required which is exceedingly complicated in construction.

Therefore it is a further object of the present invention to provide means affording the control of the latch ing and mounting means of a casement window utilizing only the handle provided on the window wing for manipulation.

Conventional fixtures for rotating and tilting casement windows are exceedingly expensive since they require an additional lever system for switching operations from rotation about a horizontal axis to rotation about a vertioal axis. This added expense is further unwarranted by the added difficulty of manipulating the window, especially by a person not familiar with the construction thereof.

It is therefore yet another object of the invention to provide a novel mounting and latching means for rotatable and \tiltable casement windows, which is relatively simple in construction and inexpensive to manufacture, thereby permitting wide use and distribution.

In manipulating a window of the prior art of rotatable and tiltable casement type, operations in the wrong sequence may lead to a complete disengagement of a window wing from the strap supporting it on a frame, which may result in damage to the window and possibly injury to the operator of the window or to persons passing beneath the window.

It is therefore a further object of the present invention Patented Jan. 31, 1961 to provide means rendering the operation of a rotatable and tiltable casement window substantially safe and foolproof.

The present invention includes the concept of providing a single handle for opening and closing of the easement window as well as for the switching from the revolving to the tilting motion without requiring two special lever systems or an angular reversion system.

To achieve this, in the axis of rotation of the window. at the part of the window which is in the opposite direction of the axis of tilt and in a lower corner of the window construction there is a basic hinge joint for rotating or tilting the window. A bolting bar is inserted on that side of the window opposite to the revolving axis and is connected with a single adjustable operating handle for the three positions of the window, that is, for closing, rotating and tilting.

The concept of this invention further incorporates therein means for securely locking the window in a closed position, and for overcoming some of the weight of the window when opened by tilting motion so that the window may be easily closed.

These, together with the various ancillary objects and features of the invention which will become apparent as the following description proceeds, are attained by this rotating and tilting casement window, preferred embodiments of which have been illustrated in the accompanying drawings, wherein:

Fig. l is a side elevational view of the easement window construction according to the present invention, illustrating the window in a closed position;

Fig. 1A is a horizontal sectional detail view as taken along the plane of line 1A-1A in Fig. 1;

Fig. 2 is a side elevational view of the easement window shown in Fig. 1, illustrating the window in an open position rotated about a vertical axis;

Fig. 2A is a horizontal sectional detail view as taken along the plane of line 2A-2A of Fig. 2;

Fig. 3 is a side elevational view of the window shown in Fig. l but showing the window in an opening position tiltcd about a horizontal axis;

Fig. 3A is a vertical sectional view as taken along the plane of line 3A-3A in Fig. 3;

Fig. 3B is a horizontal sectional view as taken along the plane of line 3B-3B in Fig. 3;

Fig. 4 is an enlarged elevational view of a portion of the casement window with parts thereof being broken away to show other parts in section;

Fig. 5 is a horizontal sectional detail view as taken along the plane of line 5-5 in Fig. 4;

Fig. 6 is another horizontal sectional view of a portion of the window as taken along the plane of line 6-6 in Fig. 4;

Fig. 7 is a further sectional detail view as taken along the horizontal plane of line 7-7 in Fig. 4;

Fig. 8 is a sectional detail view of an arrangement for storing kinetic energy used in tilting the window to an open position;

Fig. 9 is a sectional detail view as taken along the plane of line 99 in Fig. 8, illustrating particularly the resilient means used to aid in closing the window;

Fig. 10 is an elevational view of the embodiment of the invention, details of which are shown in Fig. 8 with the window wing shown in a tilted open position;

Fig. 10A is a vertical sectional view as taken along the plane of line 10A-10A in Fig. 10;

Fig. 11 is an elevational view of a modified form of a casement window having an additional latching means, and which may optionally employ the resilient means shown in Fig. 8, if desired, with the window and the handle therefor being shown in a closed position;

Fig. 12 is a view of the window as is shown in Fig. 11

with the window being shown in an opened position rotated about a vertical axis; and

Fig. 13 is an elevational view illustrating the window of Figs. 11 and 12 in an opened position tilted about a horizontal axis.

With continuing reference to the accompanying drawings wherein like reference numerals designate similar parts throughout the various views, reference numeral 1 generally designates a window frame preferably of rectangular shape having a central opening in which a window wing 2 is disposed. The casement window may be constructed of metal, plastic, wood or any other suitable material, as may be desired.

The handle 3 is pivoted to the window wing 2 and is adapted to engage with cam-like action a rod of a lever system 4. The lever system 4 has mounted thereon a pulley of the stop member 5 which rides within a recess in the frame 1, the stop member 5 being shown in a locked position in Fig. l, but being capable of passing through recesses 6 formed in the frame 1 when the rod of the lever system 4 is raised or lowered. At the end of the rod there is provided a bolting pin 7 having a projection 7b.

A ball and socket joint is arranged in the corner as at 8 so as to mount the window wing 2 to the frame 1 for either rotation about a vertical axis or tilting about a horizontal axis. The window wing is further constrained for rotation about a horizontal axis by means of a suspen sion strap arrangement including parts 9 and 10, which are arranged for rotation relative to each other.

The part 10 is firmly connected to the frame 1, While the part 9 is connected with a bar 12 by means of a pin 11 in such a manner that the bar 12 can swing around the pin 11. Further the bar 12 is pivoted to the window wing 2 by means of pin 13. With the handle 3 in a horizontal position, locking of the window is achieved by the stop member 5 engaging the frame and by the projection 711 of the bolting pin 7 being indented into a suitable recess in the frame 1.

The window is shown in an opened position rotated about a vertical axis in Fig. 2. Handle 3 is turned downwardly raising the lever system including the stop member 5 until it is in alignment with the recess 6. The lever system may include a gear wheel acting upon a gear rack or spur, not shown, or may be of any other suitable construction depending upon the weight and size of the window utilized. The pin 7 is raised to an upward position and the projection 7b is no longer engaged in the recess in the frame 1. The window can now be turned about the vertical axis which is formed by the ball pivot 8 and the two strap parts 9 and 10.

Fig. 3 shows the Window in an opened position tilted about a horizontal axis. To achieve this position the handle 3 is turned upward and has therewith cammed or otherwise moved the lever system 4 downwardly, placing the stop member 5 in alignment with the lower recess 6.

The pin 7 is moved downwardly by the lever system and comes to rest with the horizontally extending projection 70 thereof on the sash and with the projection 7b within the recess. The window can therefore be tilted about the horizontal axis formed by the projection 7a of the pin 7 and the ball pivot 8. The frame is further recessed so that the end of the pin has room in the sash about which it can swing. When tilting the window, the bar 12 swings around the pin 11 and the pin 13 slides in the slotted hole 14 in the bar 12. Optionally, the window wing can be provided with a slotted hole in lieu of the bar. The bar 12 holds the wing in the tilted position.

A specific constructive example of the bar 12 is shown in Figs. 4 to 7. The window wing 2 carries a panel 15 and a panel-supporting strip or molding 16. The upper strap part 9 is connected with the bar 12 by bolt 36 and nut 19 through inbetween layers of fiber plates 17 and 18. The two fiber plates 17 and 18 operate as an automatic stopping means or brake to ensure that the bar 12 does not swing away outwardly when the window is open. This protection may be attained by other means, as for example by an arresting bolt or peg, which is locked against the bar 12 and strap part 9 when the window is open by revolving, while the same bolt or peg when the window is closed takes a position which allows the outward swinging of the bar 12.

In Fig. 6, the fork-like part 20 which is affixed to the window wing 2 by screws 21 can be seen. The bifurcated bracket 20 is for the purpose of preventing bending of the bar 12 when the window is opened by revolving about vertical axis. Bracket 20 can be made in any suitable manner and can also be aifixed to the frame 1.

In Fig. 7 there is shown the connection of the bar 12 to the window wing 2 by means of screw and filler 22. As shown, the bar slides in the frame in the space of the slotted hole 14 or 28, as can be seen in Figs. 3A and 10A.

Large and heavy windows, especially when provided with double panels, are very difficult to close from a tilted position, which renders manipulation more difficult. In order to overcome these difiiculties, means for storing kinetic energy used in opening the window may be provided and an arrangement of this nature is shown in Figs. 8 through 10A. The bar 12 is attached to the window wing 2 utilizing a crosshead shoe or slide block 23 which slides in the slot 28 of the window wing 2. The slide block 23 is internally threaded as at 29 or is bored for reception of a shaft 25 about which compression spring 24 is positioned. The spring 24 biases the block 23 and a collar 26 on the shaft 25. The shaft 25 extends through a gland and may be provided with a slotted head or other shaped headpieces for enabling the adjustment thereof.

The headpiece may be threaded as at 52 for threaded engagement with the gland 27 in the event that the other end of the shaft slides in the block 23. If the end of the shaft is threadedly engaged in the block 23, then the upper end of the shaft may slide within the gland 27. Alternatively, the gland 27 may be rotatable with respect to the window wing, whereby rotation thereof can vertically adjust the position of the collar 26 and hence the initial compression on the spring 24. In adjusting the spring 24, it may be so arranged that the weight of the window wing 2 is relieved to such an extent that it will become easy to close the window since, as shown in Fig. 10A, the spring will be further compressed when the bar 12 is moved to a raised position upon tilting of the window to an opened position.

Casement windows of the nature heretofore disclosed of a considerable window width, for example over .8 m. for practical reasons should be furnished with additional locking means at the upper horizontal part besides the usual locking means at the vertical side opposite the strap mountings.

Referring now to Figs. ll to 13 wherein there is shown such an arrangement, it is to be noted that this arrangement may be used in addition to the resilient means including the spring 24 previously described.

This locking means includes besides the vertical section of the lever system, a horizontal section 31 which is actuated through a corner arrangement 30, which may include gears or cams for translating movement in any conventional manner. The horizontal section includes a stop member or pulley 32 which is adapted to pass through recesses 33 when in alignment therewith or to be, as shown in Fig. l, in longitudinal engagement with the window frame 1 when not aligned with the recesses 33. The horizontal section 31 may include a portion as at 56 adapted to pass into an aperture in the bar 12 but not to adversely affect the operation of the mounting 9, 10.

In Fig. 11, the handle 3 is shown in a closed position. The stop member 32 locks the window wing 2 with respect to the frame 1. In this position of the handle, end 56 of the lever section 31 locks into a recess of the aperture in the bar 12 without entering the strap 9.

Fig. 12 shows the handle in position for rotating. The lever system 31 is moved to the right so as to align the stop member 32 with the recess 33. The end 56 may extend onto the strap 9 so as to lock the bar 12 against any possible pivotal action thus providing a safeguard without affecting the rotating operation of the window wing 2.

In Fig. 13, the handle 3 is shown in a position for tilting operation of the window wing 2. The lever system 31 is drawn to an extent that the pulley or stop member 32 can move out of the recess 33 and in this manner the window wing is unlocked for pivoting about a horizontal axis. The end 56 is withdrawn from the bar 12 and the strap 9, thus allowing the bar 12 to function.

Thus, it can be seen that there has been defined a rotatable and tiltable casement window having a peripheral frame 1, a rectangular window wing 2 positioned within the frame, a lever system 4, 31 disposed within the frame 1, a handle 3 on the window wing 2 and engageable with the lever system 4, 31 for actuating the lever system 4, 31, first means 8 pivotally mounting the window wing for movement about horizontal and vertical pivot axes with respect to the frame 1, first latching means 7, 7a, 7b holding the window wing 2 aga'nst pivotal movement about a vertical axis, the first latching means 7, 7a, 7b being operably connected to the lever system 4 and pivotally mounting window wing 2 on the frame 1 for pivotal movement about a horizontal axis, second means 9, 10 pivotally mounting the window wing 2 to the frame 1 for pivotal movement about a vertical axis, second latching means 5, 6 operably connected to the lever system 4 for holding the window wing against pivotal movement, and a bar 12 pivotally slidably connected to the window wing 2 and pivoted to the second means for supporting the window wing when pivoted about a horizontal axis to an opened position.

Various changes and modifications may be made without departing from the spirit and scope of the present invention and it is intended that such obvious changes and modifications be embraced by the annexed claims.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. A rotatable and tiltable casement window comprising a rectangular peripheral frame, a rectangular window wing disposed within aid frame, a lever system disposed within said frame, a handle on said window wing and engageable with said lever system for actuating said lever system, first means pivotally mounting said window wing for movement about horizontal and vertical pivot axes with respect to said frame, first latching means holding said window wing against pivotal movement about a vertical axis, said first latching means being operably connected to said lever system and pivotally mounting said window wing on said frame for pivotal movement about a horizontal axis, second means pivotally mounting said window wing to said frame for pivotal movement about a vertical axis, second latching means operably connected to said lever system for holding said window against pivotal movement, and a bar pivotally slidably connected to said window wing and pivoted to said second means for supporting said window wing when pivoted about a horizontal axis to an opened position, said lever system including a rod extensible through said bar to lock said window wing in a closed position.

2. A rotatable and tiltable casement window comprising a rectangular peripheral frame, a rectangular window wing disposed within said frame, a lever system disposed within said frame, a handle on said window wing and engageable with said lever system for actuating said lever system, first means pivotally mounting said window wing for movement about horizontal and vertical pivot axes with respect to said frame, first latching means holding said window Wing against pivotal movement about a vertical axis, said first latching means being operably connected to said lever system and pivotally mounting said window wing on said frame for pivotal movement about a horizontal axis, second means pivotally mounting said window wing to said frame for pivotal movement about a vertical axis, second latching means operably connected to said lever system for holding said window against pivotal movement, a bar pivotally slidably connected to said window wing and pivoted to said second means for supporting said window wing when pivoted about a horizontal axis to an opened position, said lever system including a rod extensible through said bar to lock said window wing in a closed position, and a third latching means associated with said rod and operable thereby to lock said window wing in a closed position.

3. A rotatable and tiltable casement window comprising a rectangular peripheral frame, a rectangular window wing disposed within said frame, a lever system disposed within said frame, a handle on said window wing and engageable with said lever system for actuating said lever system, first means pivotally mounting said window wing for movement about horizontal and vertical pivot axes with respect to said frame, first latching means holding said window wing against pivotal movement about a vertical axis, said first latching means being operably connected to said lever system and pivotally mounting said window wing on said frame for pivotal movement about a horizontal axis, second means pivotally mounting said window wing to said frame for pivotal movement about a vertical axis, second latching means operably connected to said lever system for holding said window against pivotal movement, a bar pivotally slidably connected to said window wing and pivoted to said second means for supporting said window wing when pivoted about a horizontal axis to an opened position, said lever system including a rod extensible through said bar to lock said window wing in a closed position, and resilient means associated with said bar and said second means for aiding in returning said window wing from a opened position pivoted about a horizontal axis to a closed position.

4. A rotatable and tiltable casement window comprising a rectangular peripheral frame, a rectangular window wing disposed within said frame, a lever system disposed within said frame, a handle on said window wing and engageable with said lever system for actuating said lever system, first means pivotally mounting said window wing for movement about horizontal and vertical pivot axes with respect to said frame, first latching means holding said window wing against pivotal movement about a vertical axis, said first latching means being operably connected to said lever system and pivotally mounting said window wing on said frame for pivotal movement about a horizontal axis, second means pivotally mounting said window wing to said frame for pivotal movement about a vertical axis, second latching means operably connected to said lever system for holding said window against pivotal movement, a bar pivotally slidably connected to said window wing and pivoted to said second means for supporting said window wing when pivoted about a horizontal axis to an opened position, said lever system including a rod extensible through said bar to lock said window wing in a closed position, a third latching means associated with said rod and operable thereby to lock said window wing in a closed position, and resilient means associated with said bar and said second means for aiding in returning said window wing from an opened position pivoted about a horizontal axis to a closed position.

5. A window construction comprising a frame, a window wing disposed within said frame, lever means disposed within said frame and including a horizontal sec tion and a vertical section connected to said horizontal section, a handle on said window wing and engageable with said vertical section of said lever means for actuating said lever means, first mounting means pivotally mounting said window wing for movement about horizontal and vertical pivot axes with respect to said frame, first latching means holding said window wing against pivotal movement about a vertical axis, said first latching means being operably connected to said vertical section of said lever means and pivotally mounting said window wing on said frame for pivotal movement about a horizontal axis, second mounting means pivotally mounting said window wing to said frame for pivotal movement about a vertical axis, second latching means recessed in said frame and operably connected to said vertical section of said lever means for holding said window against pivotal movement, a bar pivotally slidably connected to said window wing and pivoted to said second means for supporting said window wing when pivoted about a horizontal axis to an opened position, and a third latching means recessed in said frame and associated with said horizontal section of said lever means for locking said window wing against pivotal movement, said horizontal section including a rod extensible through said bar to loclt said window wing in a closed position.

6. A window construction comprising a frame, a window wing disposed within said frame, lever means disposed within said frame and including a horizontal section and a vertical section connected to said horizontal section, a handle on said window wing and engageable with said vertical section of said lever means for actuating said lever means, first mounting means pivotally mounting said window wing for movement about horizontal and vertical pivot axes with respect to said frame, first latching means holding said window wing against pivotal movement about a. vertical axis, said first latching means being operably connected to said vertical sec tion of said lever means and pivotally mounting said window wing on said frame for pivotal movement about at horizontal axis, second mounting means pivotally mounting said window wing to said frame for pivotal movement about a vertical axis, second latching means recessed in said frame and operably connected to said vertical section of said lever means for holding said window against pivotal movement, a bar pivotally slidably connected to said window wing and pivoted to said second means for supporting said window wing when pivoted about a horizontal axis to an opened position, a third latching means recessed in said frame and associated with said horizontal section of said lever means for locking said window wing against pivotal movement, said horizontal section including a rod extensible through said bar to lock said window wing in a closed position, and resilient means associated with said bar and said second means for aiding in returning said window wing from :i opened position pivoted about a horizontal axis to a closed position.

7. A window construction comprising a frame, a window wing disposed within said frame, lever means disposed within said frame and including a horizontal section and a vertical section connected to said horizontal section, a handle on said window wing and engageable with said vertical section of said lever means for actuating said lever means. first mounting means pivotally mounting said window wing for movement about horizontal and vertical pivot axes with respect to said frame, first latching means holding said window wing against pivotal movement about a vertical axis, said first latching means being operably connected to said vertical section of said lever means and pivotally mounting said window wing on said frame for pivotal movement about a horizontal axis. second mounting means pivotally mounting said window wing to said frame for pivotal movement about a vertical axis, second latching means recessed in said frame and operably connected to said vertical section of said lever means for holding said window against pivotal movement, a bar pivotally slidably connected to said window wing and pivoted to said second means for supporting said window wing when pivoted about a horizontal axis to an opened position, and a third latching means recessed in said frame and associated with said horizontal section of said lever means for locking said window wing against pivotal movement, said frame having a recess therein, said first latching means including a pin seatable in said recess to lock said window wing against pivotal movement about a vertical axis.

8. A window construction comprising a frame, a window wing disposed within said frame, lever means disposed within said frame and including a horizontal section and a vertical section connected to said horizontal section, a handle on said window wing and engageable with said vertical section of said lever means for actuating said lever means, first mounting means pivotally mounting said window wing for movement about horizontal and vertical pivot axes with respect to said frame, first latching means holding said window wing against pivotal movement about a vertical axis, said first latching means being operably connected to said vertical section of said lever means and pivotally mounting said window wing on said frame for pivotal movement about a horizontal axis, second mounting means pivotally mounting said window wing to said frame for pivotal movement about a vertical axis, second latching means recessed in said frame and operably connected to said vertical section of said lever means for holding said window against pivotal movement, a bar pivotally slidably connected to said window wing and pivoted to said second means for supporting said Window wing when pivoted about a horizontal axis to an opened position, a third latching means recessed in said frame and associated with said horizontal section of said lever means for locking said window wing against pivotal movement, said horizontal section including a rod extensible through said bar to lock said window wing in a closed position, and resilient means associated with said bar and said second means for aiding in returning said window wing from an opened position pivoted about a horizontal axis to a closed position, said frame having a recess therein, said first latching means including a pin seatable in said recess to lock said window wing against pivotal movement about a vertical axis.

9. A rotatable and tiltable casement window comprising a rectangular peripheral frame, a rectangular window wing disposed within said frame, a lever system disposed within said frame, a handle on said window wing and engageable with said lever system for actuating said lever system, first means pivotally mounting said window wing for movement about horizontal and vertical pivot axes with respect to said frame, first latching means holding said window wing against pivotal movement about a vertical axis, said first latching means being operably connected to said lever system and pivotally mounting said window wing on said frame for pivotal movement about a horizontal axis, second means pivotally mounting said window wing to said frame for pivotal movement about a vertical axis, second latching means operably connected to said lever system for holding said window against pivotal movement, a bar pivotally slidably connected to said window wing and pivoted to said second means for supporting said window Wing when pivoted about a horizontal axis to an opened position, said lever system including a rod extensible through said bar to lock said win dow wing in a closed position, a third latching means associated with said rod and operable thereby to lock said window wing in a closed position, and resilient means associated with said bar and said second means for aiding in returning said window wing from an opened position pivoted about a horizontal axis to a closed position, said frame having a recess therein, said first latching means including a vertically extending pin, said pin having a horizontally extending projection, said pin being seatable in said recess to lock said window wing against pivotal movement about a vertical axis, said projection 9 testing on said frame to provide an axis for horizontal pivotal movement.

10. The window of claim 1, wherein said frame has a recess therein, said first latching means including a vertically extending pin, said pin having a horizontally extending projection, said pin being seatable in said recess to lock said window wing against pivotal movement about a vertical axis, said projection resting on said frame to provide an axis for horizontal pivotal movement.

References Cited in the file of this patent UNITED STATES PATENTS 

